2123432331 has 16 divisors (see below), whose sum is σ = 2911789824. Its totient is φ = 1375454304.

The previous prime is 2123432303. The next prime is 2123432341. The reversal of 2123432331 is 1332343212.

It is not a de Polignac number, because 2123432331 - 2⁵ = 2123432299 is a prime.

It is a super-2 number, since 2×2123432331² = 9017929728672187122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123432341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69600 + ... + 95346.

It is an arithmetic number, because the mean of its divisors is an integer number (181986864).

Almost surely, 2^2123432331 is an apocalyptic number.

2123432331 is a deficient number, since it is larger than the sum of its proper divisors (788357493).

2123432331 is a wasteful number, since it uses less digits than its factorization.

2123432331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26530.

The product of its digits is 2592, while the sum is 24.

The square root of 2123432331 is about 46080.7153915822. The cubic root of 2123432331 is about 1285.3245670872.

Adding to 2123432331 its reverse (1332343212), we get a palindrome (3455775543).

The spelling of 2123432331 in words is "two billion, one hundred twenty-three million, four hundred thirty-two thousand, three hundred thirty-one".